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Topic: Dryer Won't Heat (Read 12731 times)

Did you give up on me already? Tonight I pulled out the drum and tested everything I could get my probes on, everything is in spec with the manual. I re-tested valve 2 (pink and red wires) at the plug on the main board....Still not getting any voltage after the ignitor goes out. Valve 1 (red and white wires) gets 100DCv as ignitor is on. It seems that the mainboard is not getting the signal to open valve 2, could this be the ignitor not getting hot enough for the flame sensor to open the valve?

This is where it gets difficult. I would lean towards telling you to try the ignitor. Unfortunately everything else seems to be okay. The ignitor has to be just right for the valves to open. It is merely a safety issue. I have seen it way to often on older machines. From reading the posts and the fact that you have replaced the board, I would replace it.

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Beehive Appliance is a family owned appliance repair business in Utah established in 1946. From dishwashers to dryers, we repair it all. If you are looking for expert service at a reasonable price, look no further. Beehive Appliance Service is your solution. Give us a call today! 801-523-8184

Your wire harness is fine. I am attaching a part of a manual which explains how the LG Gas valve flows. The Flame sensor has only a 50 degree spread between open and closed. open @370 closed @350 Have you put an ohm meter on the two leads of the flame sensor while you are trying to run the machine? if so, does it ever open (have no continuity)? this should be open when the ignitor is at its hottest point. I still think you have an issue with the ignitor not getting hot enough or the sensor never opens. One trick you may try is to carefully disconnect one of the wires to the sensor while the ignitor appears to be heating. Do this with the gas off, and while you are measuring voltage to valve 2. This will tell you if everything above (board, wire harness) is working fine. If you have your voltage at this point you are sure it is either the sensor or the ignitor. I still would try the ignitor first because in my experience the sensors just don't fail that often.

Beehive Appliance is a family owned appliance repair business in Utah established in 1946. From dishwashers to dryers, we repair it all. If you are looking for expert service at a reasonable price, look no further. Beehive Appliance Service is your solution. Give us a call today! 801-523-8184

OK, I got all of my parts and you are not going to believe this.... I still had the same problem, only 22DCV to the valve 2 plug. I was about to give up but I decided to put the plug on valve 1 and then test 2 (I was testing with both plugs disconnected) viola! I have 103DCV. So I took off each part and tested. Now I am back to my original equipment and I get 103DCV. Since the dryer still won't heat, what now? The gas coils?

Beehive Appliance is a family owned appliance repair business in Utah established in 1946. From dishwashers to dryers, we repair it all. If you are looking for expert service at a reasonable price, look no further. Beehive Appliance Service is your solution. Give us a call today! 801-523-8184

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